2 (3.5 oz) pkg vanilla instant pudding
1 (8 oz) container cool whip
3 cups milk
16 oz graham crackers
1 container prepared chocolate frosting.
Prepare pudding with 3 cups milk then fold in cool whip. In 9x13 layer graham crackers, pudding mixture, graham crackers, pudding mixture, ending with crackers on top. Top with chocolate frosting (this goes a lot easier if you microwave the frosting for just 20-30 seconds to get it nice and soft and pourable). Spread the frosting to cover all crackers. Allow to chill in the fridge at least 4 hours to soften crackers.